USB Audio Decoder ICs - BU94601KV
ROHM's USB Audio Decoder ICs integrate a USB 2.0 host, SD memory card controller, AAC decoder, WMA decoder, MP3 decoder, Audio DAC amp, and a system controller all on a single chip, allowing easy playback of music stored in USB flash memory using an audio player. They can be easily added to virtually any audio device (i.e. CD player, mini-component stereo, portable player, car stereo) for greater functionality.
|* This product is a STANDARD grade product and not recommend for on-vehicle devices.|
|Digital Audio I/F||I2S SPDIF|
|USB||USB2.0 Full Speed|
|SD||MMC SD / miniSD / microSD / SDHC|
|Display information||Number(Folder, File), Reproduction time, Name(Folder, File), Tag(Artist, Album, Title)|
|MP3||MPEG 1, 2, 2.5 LAYER 1, 2, 3|
|Operating Temperature (Min.)[°C]||-40|
|Operating Temperature (Max.)[°C]||85|
- ・BU94601KV is MP3 decoder IC in which a USB host I/F, SD memory card I/F, audio DAC
and system control functions are built. Using a KEY or I2C interface command, the
IC reads out a MP3 file written to a memory device having a USB I/F or a SD
memory card. All the operations required before the data can be output to audio
devices are incorporated into one chip.
・BU94601KV supports STAND ALONE MODE which is enabled by commands entered from
the keyboard (hereinafter referred to as MODE1), AUTO SLAVE MODE which is
enabled by commands entered from the master microcomputer, same as those
entered from the keyboard, via the built-in I2C interface (hereinafter referred to as
MODE2) and MANUAL SLAVE MODE which can send the memory device
information to the master microcomputer via the I2C interface and completely
control sequences such as a play sequence by the master microcomputer
(hereinafter referred to as MODE3).
・BU94601KV supports fast forward playing and fast backward playing with music.
・BU94601KV outputs folder names, file names and ID3TAG (V1.0, V1.1 V2.2 V2.3 and
V2.4) information via the I2C interface. This function is enabled only in MODE 2
・BU94601KV supports audio line output, audio serial three-line (I2S) output and digital
audio interface (SPDIF) output.
・Reading a specified file data is possible from USB memory. *Only a file that exists in root